How to Check if a Car Has Brake Pads
2 Answers
Some brake pads can be seen through the gaps in the wheel hub. If the brake pads have worn down to one-third of the standard thickness, it is recommended to replace them. For some models, the dashboard handbrake light will indicate when the brake pads are too thin. If you notice that the pedal position is significantly lower during emergency braking, it may indicate that the brake pads have lost most of their friction and must be replaced immediately.
I just checked the brake pads for my neighbor last week. The easiest way is to look at the thickness of the metal piece clamped by the brake caliper through the wheel hub gap. New brake pads are about as thick as a fingernail. If they're worn down to just 2-3 millimeters, they definitely need replacement. If you hear a sharp squealing noise when braking during normal driving, it's probably the wear indicator scraping as a warning. If you feel the pedal vibrating like a phone alert during emergency braking, or notice significantly longer braking distances, get them inspected immediately. If you're unsure, just ask a roadside repair shop to remove a tire and measure—it takes ten minutes and is usually free. After all, the braking system is critical for safety, so don't skimp on inspection time.